As the elf pulled Jon out of the room and into the hall, he suddenly realized that he still had the stone with him. He could just wish himself back to normal. Surely, the stone's magic trumped the magic used by Santa Claus, right?
But what should he wish for? To return home? Or maybe return himself to his normal body? What about all the other humans who were turned into elves because they wandered into the North Pole? Should he help them too?